Per review feedback on #53997 from @teknium1: the flag was set True
on failed device_id resolution but never reset, so a same-adapter
reconnect that successfully resolves a real device_id would keep
skipping server-side key verification indefinitely.
Reset now happens at the top of connect(), before resolution runs,
so every connect() attempt starts clean. A repeat failure re-sets
the flag (unchanged behavior); a recovery correctly clears it.
Adds TestDeviceIdRecoveryOnReconnect to cover the transition.
09dbe76955